Home Additions Experts
Expert Home Additions Services
GS Construction & Remodeling specializes in professional Home Additions. As a father-son team, we bring decades of combined experience to every project.
From the first walkthrough to the last punch-list item, Greg or Patryk runs your Home Additions project themselves. That means a scope written out line by line instead of one number, permits pulled and handled with your village, and the same faces on site rather than a crew you've never met.
- Specialized Home Additions expertise
- On-site supervision for every project
- Transparent pricing with no surprises
- Quality craftsmanship guaranteed
"Your Home Additions project deserves the best—we deliver it."
Neighborhoods & landmarks near our Mundelein home additions
University of Saint Mary of the Lake, Mundelein High School, Carmel Catholic High School, Diamond Lake, Loch Lomond, Kracklauer Park, Barefoot Bay Family Aquatic Center, Steeple Chase Golf Club, Metra North Central Service station
Home additions in Mundelein, IL
GS Construction provides kitchen, bathroom, and whole-home remodeling services to homeowners in Mundelein and throughout Lake County. As a family-owned and operated remodeling contractor with decades of experience, we understand the unique needs of homeowners in the northern Chicago suburbs.
Mundelein permits & building codes for home additions
The Village of Mundelein's Building Department reviews plans and issues all building permits — the village processes more than 2,600 permits and 3,000 inspections a year — with applications and payments handled through its BS&A Online portal. Contractors must also hold a current Village of Mundelein contractor registration, renewed annually per trade, before working on permitted projects, and remodels are inspected across building, electrical, plumbing, and fire disciplines. GS Construction manages the entire permit process in Mundelein, from the BS&A application and contractor registration through plan review and final inspections.
How your Mundelein project runs
ProcessThe same six stages on every job — free in-home estimate through warranty.
Free in-home estimate
Greg or Patryk — the owners, not a salesperson — walk your space, take real measurements, and give you honest feedback on what your budget buys.
Itemized scope & contract
Labor, materials, demolition and disposal priced line by line, not one mystery number. Payment terms and warranty are in the written contract.
Design & selections
Bring your own designer, use our architects and designers, or choose everything yourself. Selections are scheduled ahead so lead times never stall the site.
Permits & scheduling
We pull and manage building, plumbing and electrical permits with your village — typically 1–2 weeks — and hand you a written schedule before demo day.
The build, owner-supervised
Long-standing trade partners working in sequence under daily owner supervision. Your client portal shows the schedule, change orders and current balance.
Walkthrough & warranty
We walk the finished job together, close out every punch-list item, hand over manufacturer paperwork, and your written workmanship warranty starts. Our commitment never expires.
Testimonials
Your Neighbours in Mundelein Love Us
Real reviews from homeowners. Ask us for live phone references.
GS Construction & Remodeling is the best of the best. We've hired them to work on 5 different properties (4 were extensive remodels) and continue to be thrilled with their work and have referred them to friends and family. I constantly bring to them pictures/ideas from Houzz & Pinterest and ask how we can duplicate high end looks on a budget and they pull it off - magnificently - every time. Not only do they know their craft, but they have a great design sense as well and make suggestions that always enhance the project. Their communication (providing estimates for changes as we go along, keeping in touch regarding scheduling, etc.) is excellent. They're nice people and incredibly respectful too - top notch all around.
Before & After & Timelapse
What homeowners near Mundelein say
“GS Construction & Remodeling is the best of the best. We've hired them to work on 5 different properties (4 were extensive remodels) and continue to be thrilled with their work and have referred them to friends and family. I constantly brin...”
“I don't even know where to begin, Patryk & Greg are just amazing! We hired them to remodel approximately 4000 sqft of a 1985 house which included an unfinished basement. The whole experience could not have been better. It took about 7 month...”
“Our project turned out better than we expected and as things were going along, we added more projects. Patryk, Greg and their team did a fantastic job. They were always so nice to work with, even suggesting things which was helpful. They ne...”
Budgeting first? See real 2026 price ranges in our home additions cost guide — and what your Mundelein permit will add in our permit guide.
Completed projects around Mundelein
GS Construction crews have completed 91 projects within 10 miles of Mundelein — part of 409 completed projects across 68 Chicago-area ZIP codes. The map below shows real project density from our records, not a service-area claim.
More Remodeling Services in Mundelein
Contact GS Construction
Let's Build Beautiful Spaces Together
GS Construction is a father-and-son construction company specializing in residential remodeling and renovations in Mundelein. Expect clear communication, quality craftsmanship, and a straightforward plan—reach out today to schedule a free in-home consultation and get a detailed estimate and honest feedback.
- Telephone
- (224) 735-4200
- [email protected]
- Service Area
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Service Area
Mundelein and surrounding Chicagoland areas